Julius feldman



PATENT EETCE.

JULIUS FELDMAN, OF NEW YORK, N. Y.

BOLT FOR DOORS AND SHUTTERS.

Specification forming part of Letters Patent No. 46,@9 E, dated March21, 1865.

To all lwhom it muy concern Be it known that I, J ULIUs FELDMAN, of thecity, county, and State of New York, have invented a new and ImprovedBolt for Doors, Shutters, 85e.; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in Which- Figure l is a front or face view of myinvention; Fig. 2, a transverse section ofthe same, taken in the line :vx, Fig. l; Fig. 3, a plan or top View of the same; Fig. 4, a section ofthe same, taken in the line y y, Fig. 2.

Similar letters of reference indicate like parts.

This invention relates to a new and useful improvement in slide-bolts,such as are applied to doors, shutters, &c., to serve as a fastening forthe same.

The invention consists in al'iplying to the class of bolts aforesaidcertain mechanism, hereinafter fully shown and described, whereby theywill, by a very simple adjustment or manipulation of a certain part, beshoved back automatically free from or out ofthe eye or loop into whichthey pass to secure the door or other article to which they are appliedin a closed slate.

In the accompanying drawings, A represents a plate to-which guides a aare attached and which the bolt B is fitted and allowed to slide freelyas usual. This bolt B has a rack, b, at one end of it, and this rack maybe a sunken one if desired. Into the rack b a pinion or part pinion, C,gears, the axis c of which is attached to plate A, and to the axis c theinner end of a coil-spring, D, is secured, the outer end being connectedto a cylindrical case, d, which encompasses the spring, and which formsthe body or main portion of the part pinion G, said case d havingratchet-teeth e at its side opposite to that where the pinionteeth areformed. The axis c is a fixed one, the case el turning upon it, and tocase d there is attached a handle, D', through which the case, andconsequently the part pinion and ratchet, are turned.

E is a pawl which engages with the ratchetteeth e of the case d, asshown clearly in Fig. 4, and to this pawl E there is connected a slide,F, which is at the outer side of a plate, G, the latter being attachedto plate A.

From the above description it will be seen that by moving the handle Din the direction indicated by arrow 1, the bolt B will be shoved ormoved in the direction indicated by arrow 2, and into the eye or loopwhich causes the door, shutter, or other article to which the bolt isapplied to be securely fastened. This movin g or turning of the case din order to throw the bolt in the direction described winds up thespring D, which is reretained by the pawl E catching into theratchet-teeth e, said pawl also holding the bolt B.

In order to unbolt the bolt or allow it to be thrown back free from theeye or loop in the direction indicated by arrow 3, the slide F isactuated so as to free the pawl E from the ratchet-teeth e when thespring D immediately performs said work.

Thus by this simple arrangement or application of parts to the bolt thelatter may be readily operated, while the improvement Will not addgreatly to the expense of manufacture,

I claim as new and desire to secure by Letters Patent- The applicationto a slide-bolt for doors, shutters, &c., of a pinion, ratchet, spring',and pawl, to operate in the manner substantially as and for the purposeherein set forth.

. FELDMAN.

